<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form>
    <input type="text" name="username" placeholder="请输入用户名:">
    <input type ='password' name="password" placeholder="请输入密码:">
    <input type ='submit' name="submit" value="登录">
    </form>
</body>
</html>